Spin-flux phase in the Kondo lattice model with classical localized spins

被引:41
作者
Agterberg, DF
Yunoki, S
机构
[1] Florida State Univ, Natl High Magnet Field Lab, Tallahassee, FL 32310 USA
[2] Univ Wisconsin, Dept Phys, Milwaukee, WI 53201 USA
[3] Univ Groningen, Ctr Mat Sci, NL-9747 AG Groningen, Netherlands
基金
美国国家科学基金会;
关键词
D O I
10.1103/PhysRevB.62.13816
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We provide numerical evidence that a spin-flux phase exists as a ground state of the Kondo lattice model with classical local spins on a square lattice. This state manifests itself as a double-e magnetic order in the classical spins with spin density at both (0, pi) and (pi ,0) and further exhibits fermionic spin currents around an elementary plaquette of the square lattice. We examine the spin-wave spectrum of this phase. We further discuss an extension to a face-centered-cubic (fcc) lattice where a spin-flux phase may also exist. On the fee lattice the spin-flux phase manifests itself as a triple-Q magnetically ordered state and may exist in gamma -Mn alloys.
引用
收藏
页码:13816 / 13819
页数:4
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